[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] Suspending cached pages
Hi, I used the demo CD to test suspending a domain to disk, hoping to migrate suspended domains between Xen machines. The domain reported 62940 kB total memory in /proc/meminfo, with 29800 cached. This happily suspended to a 22965k gzip file, which expands to 65610k when decompressed. Am I right in thinking that the cache pages were be included, and if so are there any thoughts on removing them? I seem to recall that before swsusp actually starts its suspension of memory to disk scripts prepare the machine state and cache pages are not written out. This means that full performance isn't returned immediately after resumption, but presumably it's just as fast to re-read the cache back from files on disk rather than pages from a suspend file, and it minimises machine state. Cheers, Sean. -- Sean Atkinson <sean@xxxxxxxxxxxxxx> Netproject ------------------------------------------------------- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/xen-devel
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